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Under Consideration for 1.5.X



Found in [Package]



Issue ID




[Input System] Enabling both optimization options of Input System reduces performance in built Players

Package: Input System


Steps to reproduce:
1. Open the attached user's project ""
2. Open "ScoreManager.cs"
3. Enable and disable the performance optimizations used in the Awake() method
4. Make sure Development Build and Auto-connect Profiler is enabled
5. Once Built, open the Profiler and observe "PreUpdate.NewInputUpdate" Time ms

Expected results: Enabling both optimization options of Input System increases performance inbuilt Player
Actual Results: Enabling both optimization options of Input System reduces performance inbuilt Players

Reproducible: Input System 1.5.0 - 1.5.1 (2020.3.46f1, 2021.3.21f1, 2022.2.12f1, 2023.1.0b8)
Could not test on 2023.2.0a8 due to an Obsolete Custom package scripting errors

Reproducible on these devices:
VLNQA00415 - Oculus Quest 2 (Quest 2), CPU: Snapdragon XR2, GPU: Adreno 650, OS: 10
VLNQA00275 - Oculus Quest (Quest), CPU: Snapdragon 835 MSM8998, GPU: Adreno 540, OS: 10
N/A, Google Pixel 3 (Pixel 3), Android 12, CPU: Snapdragon 845, GPU: Adreno (TM) 630
VLNQA00413 - Samsung Galaxy Note10+ (SM-N975F), OS: 9, CPU: Exynos 9 Series 9825, GPU: Mali-G76
VLNQA00372 - Galaxy S21 5G (SM-G991U), CPU: Snapdragon 888, GPU: Adreno 660, OS: 11
VLNQA00202 - Samsung Galaxy Note 9 USA (SM-N9600), CPU: Snapdragon 845 SDM845, GPU: Adreno 630, OS: 9.0.0
VLNQA00177 - Xiaomi Mi Note 2 (Mi Note 2), OS: 6.0.1, CPU: Snapdragon 820 MSM8996, GPU: Adreno 530
Customer Devices:
Pico 4

Environment: Windows 10 22H2

-Optimizations in question:
InputSystem.settings.SetInternalFeatureFlag("USE_OPTIMIZED_CONTROLS", true);
InputSystem.settings.SetInternalFeatureFlag("USE_READ_VALUE_CACHING", true);
-Issue is not exclusive to VR
-When Optimizations are enabled, Time in ms increases to 15-20ms from 5-9ms
-Issue does not reproduce on a non-VR Windows standalone Build

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